Abstract Fused deposition modeling (FDM) is an important process among the available additive manufacturing technologies in various industries. Although there exists many works investigating the effects of FDM process parameters on the mechanical properties of printed materials, there are still several points need to be studied. One is the effects of process parameters on the dynamic mechanical properties of FDM-printed materials, especially in environments where the temperature often changes. The other is the mechanism by which process parameters affect the mechanical properties of printed materials. Aiming at these two points, uniaxial tensile tests and dynamic mechanical analysis are carried out respectively to characterize the tensile properties and dynamic mechanical properties of FDM-printed PLA materials under different FDM process parameters, namely printing angle, layer thickness, fill rate and nozzle temperature. Based on the experimental results explanations are given for the influence of the FDM process parameters on the mechanical properties of the printed materials.

中文翻译：

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熔融沉积建模工艺参数对 3D 打印聚乳酸材料拉伸、动态力学性能的影响

摘要 熔融沉积建模 (FDM) 是各个行业可用的增材制造技术中的一个重要过程。尽管有许多研究 FDM 工艺参数对印刷材料机械性能影响的工作，但仍有几点需要研究。一是工艺参数对 FDM 打印材料的动态机械性能的影响，尤其是在温度经常变化的环境中。另一个是工艺参数影响印刷材料力学性能的机制。针对这两点，分别进行单轴拉伸试验和动态力学分析，表征不同FDM工艺参数下FDM打印PLA材料的拉伸性能和动态力学性能，即打印角度、层厚、填充率和喷嘴温度。基于实验结果解释了FDM工艺参数对印刷材料力学性能的影响。